KAK electronic lock, locker lock using radio frequency identification technology, invisible sensor lock, hidden drawer locks without keys, child safety lock, door devices.

Low battery warning and automatic opening Don't worry about being locked. The lock will indicate the low battery status with a long alert sound after opening, and then it can be used about 50 times. When the batteries become too weak to operate, the door will open automatically, and at this point, the batteries should be replaced before using the lock again. Parameters Brand: Kak Color: Gray/Black Materials: ABS plastic Lock size: 86*63*28 millimeters Package includes: - 1x lock without batteries - 3x user cards (operate at approximately 25 mm distance) - 1x management card (operate at approximately 50 mm distance) - 1x set of screws Small size and strong mechanism The latch and click are made of strong metal. Operates with two AA alkaline batteries, which can last for 6 months under normal use. You can also operate it using a USB power adapter instead of alkaline batteries if desired. DIY set for both required drilling. Easily fixed with screws. Multiple opening modes: (1) Single mode - one user card to open the lock; (2) Double mode - two user cards to open together. Child safety lock Keep children away from dangerous items, easy to install, and convenient to use. This electronic lock is suitable for wooden cabinets. The RFID management card can work with wooden cabinets with a thickness of 0-2 inches (50 mm). The user card fits doors up to 0 inches - 1 inch (25 mm) thick, ideal for cabinets, drawers, safes, cabinets, medical carts, data shelves, gun safes, and cabinets.